Patents Assigned to Chemische Werke Huels Aktiengesellschaft
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Patent number: 4359588Abstract: Aliphatic ethers of hydroxymethylcyclododecane of the general formula ##STR1## wherein R is a saturated or unsaturated aliphatic hydrocarbon residue of 1-4 carbon atoms, are valuable odoriferous substances possessing a long-lasting, intense woodsy scent with a balsam note of great richness.Type: GrantFiled: July 11, 1980Date of Patent: November 16, 1982Assignee: Chemische Werke Huels, AktiengesellschaftInventors: Klaus Burzin, Werner Otte
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Patent number: 4355058Abstract: Storage stable epoxy resin powder coating compositions are disclosed, which contain a solid epoxy resin and, as hardening agent, a blocked polyisocyanate compound or isocyanate terminated polymer, wherein the blocking agent is an imidazoline compound.Type: GrantFiled: August 14, 1978Date of Patent: October 19, 1982Assignee: Chemische Werke Huels AktiengesellschaftInventors: Rainer Gras, Johann Obendorf, Elmar Wolf
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Patent number: 4335018Abstract: Ethylenically unsaturated C.sub.4 -n-hydrocarbons are oxidized to maleic anhydride by passing a stream of oxygen-containing gas at high temperature over a catalyst of the formulaW.sub.a Mo.sub.b Sb.sub.c Y.sub.d X.sub.e O.sub.xwherein Y=P, Si; X=V, Bi, Te, alkali metal; a and b each =1-12; c=2-20; d=0.2-2; e=0-10; and x is the number of oxygen atoms required to satisfy the remaining valences of the other elements, prepared by reacting an Sb compound and optionally also a V, Bi, Te and/or alkali metal compound, with a solution of a heteropoly acid of Mo and W, drying and tempering the resultant blue complex.Type: GrantFiled: October 30, 1980Date of Patent: June 15, 1982Assignee: Chemische Werke Huels AktiengesellschaftInventors: Gerhard Franz, Franz Nierlich, Hans-Josef Ratajczak
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Patent number: 4329243Abstract: A Cavitation-inhibiting, nonfreezing, cooling and/or heat-transfer liquid, comprising a glycol and a cavitation inhibiting effective amount of at least one phosphonic acid of the formulaH.sub.2 O.sub.3 P--R--PO.sub.3 H.sub.2whereinR is phenylene or C.sub.1--6 -alkylene each optionally substituted by hydroxy, amino or PO.sub.3 H.sub.2 groups, or of the formula ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 each independently is a C.sub.1--4 -alkylene group or such a group whose carbon atom chain contains one or more N atoms each of which is attached to one or two groups of the formulae R.sub.1 --PO.sub.3 H.sub.2, R.sub.2 --PO.sub.3 H.sub.2 or R.sub.3 --PO.sub.3 H.sub.2 as defined above.Type: GrantFiled: October 20, 1980Date of Patent: May 11, 1982Assignee: Chemische Werke Huels AktiengesellschaftInventor: Klaus Diebel
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Patent number: 4320025Abstract: A cavitation-inhibiting, nonfreezing, cooling and/or heat-transfer liquid comprises a glycol and a cavitation-inhibiting effective amount of at least one phosphonocarboxylic acid of the formula ##STR1## wherein R is H or C.sub.1-6 alkyl, the latter optionally substituted by carboxy,R.sub.1 is H or C.sub.1-3 alkyl, the latter optionally substituted by carboxy,X is C.sub.1-3 alkylene optionally substituted by COOH or PO.sub.3 H.sub.2 groups, andn is 0 or 1.Type: GrantFiled: October 20, 1980Date of Patent: March 16, 1982Assignee: Chemische Werke Huels AktiengesellschaftInventor: Klaus Diebel
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Patent number: 4317942Abstract: Odorferous 2-alkoxyethyl-cycloalkyl-ethers of the formula ##STR1## wherein R is a saturated or unsaturated aliphatic hydrocarbon residue of 1-3 carbon atoms andn is an integer of 5 to 11 are valuable odoriferous substances possessing a woodsy scent and good fixative properties.Type: GrantFiled: July 11, 1980Date of Patent: March 2, 1982Assignee: Chemische Werke Huels, AktiengesellschaftInventor: Klaus Burzin
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Patent number: 4315867Abstract: Secondary and tertiary 2-carboxyethyl or carboxymethylphosphines or a salt thereof, of the formulaR--P(CH.sub.2 COOMe).sub.2 or R--P(CH.sub.2 --CH.sub.2 --COOMe).sub.2whereinMe is hydrogen, an alkali metal or NR'.sub.4 wherein R' is hydrogen, C.sub.1-10 alkyl or C.sub.6-14 aryl, andR is hydrogen or a saturated or unsaturated, aliphatic or cycloaliphatic group of 1-20 carbon atoms and, for the 2-carboxyethylphosphines, also C.sub.6-14 aryl,are useful as components in catalysts for ethylene oligomerization.Type: GrantFiled: January 17, 1980Date of Patent: February 16, 1982Assignee: Chemische Werke Huels, AktiengesellschaftInventor: Peter Hanssle
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Patent number: 4309522Abstract: A process for preparing an extensively amorphous butene-1-propene-ethene terpolymer having a high softening point comprises low pressure solution polymerizing butene-1, propene and ethene by contacting these monomers with a catalytically effective amount of a mixed catalyst of a thermally unstable crystalline TiCl.sub.3 .multidot.0.30 to 0.35 AlCl.sub.3 and a trialkyl aluminum or dialkyl aluminum hydride, each having alkyl groups of 2-4 carbon atoms, the atomic ratio of Al:Ti being 0.8-4.0.Type: GrantFiled: July 24, 1980Date of Patent: January 5, 1982Assignee: Chemische Werke Huels, AktiengesellschaftInventors: Johannes Dietrich, Walter Dittmann, Albert Frese, Wolfgang Kilian
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Patent number: 4309518Abstract: Molding compositions comprisingA. 60-97% by weight, based on the weight of the total composition, of a poly(alkylene terephthalate) andB. 3-40% by weight, based on the weight of the total composition, of a polyether ester amide, component A being the condensation product of(1) 80-100 molar percent of terephthalic acid, and(2) 0-20 molar percent of another hydrocarbonaromatic-,cycloalkane- or alkane-dicarboxylic acid of 6-36 C atoms, with(3) 80-100 molar percent of a 1,n-alkanediol of 2-4 C atoms, wherein n is an integer of 2 to 4, and(4) 0-20 molar percent of another alkane- or cycloalkane-diol of 3-12 C atoms, component B being the condensation product of(1) at least one polaymide-forming .omega.Type: GrantFiled: July 25, 1980Date of Patent: January 5, 1982Assignee: Chemische Werke Huels, AktiengesellschaftInventors: Gernot Horlbeck, Salih Mumcu
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Patent number: 4297505Abstract: A process for preparing a pentachloro-3-butenoic acid alkyl ester comprises reacting the corresponding 1-alkoxyheptachloro-3-butene with an aqueous solution of an alkali metal carbonate. In a preferred embodiment, the starting material 1-alkoxyheptachloro-3-butene is the solution obtained as the reaction product of the reaction of the corresponding 1-alkoxypentachloro-1,3-butadiene with chlorine.Type: GrantFiled: June 20, 1980Date of Patent: October 27, 1981Assignee: Chemische Werke Huels, AktiengesellschaftInventors: Gunther Maahs, Konrad Rombusch
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Patent number: 4263186Abstract: A lightly colored thermoplastic composition, suitable for fabrication into panels or sheets, and having high weatherability, comprises:(a) 100 parts by weight of polyolefin elastomer;(b) 15 to 130 parts by weight of crystalline or partially crystalline polyolefin;(c) 30 to 240 parts by weight of chalk and/or siliceous chalk;(d) 0.5 to 20 parts by weight of titanium dioxide; and, optionally,(e) up to 40 parts by weight of bitumen and/or mineral oil; and(f) up to 15 parts by weight of lubricant.Type: GrantFiled: August 17, 1979Date of Patent: April 21, 1981Assignee: Chemische Werke Huels AktiengesellschaftInventor: Harald Bluemel
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Patent number: 4259410Abstract: As insulation for electric cables, there is provided an improved polyolefin having low shrinkage values, high elongation values, even after aging, the desired electrical insulation properties, and comprising partially crystalline, randomly copolymerized polypropylene having a proportion of ethylene, butene-1 and/or 1-hexene incorporated by polymerization of 1-6% by weight, a xylene-soluble proportion of 2-20% by weight, a viscosity value I of 200-400 cc./g., a melt flow index value (MFI.sub.190/5) of 1-20 g./10 min., and an elongation value of above 700%.Type: GrantFiled: April 6, 1978Date of Patent: March 31, 1981Assignee: Chemische Werke Huels AktiengesellschaftInventors: Walter Dittmann, Albert Frese, Otto Hahmann, Johannes Plenikowski, Helmut Klawitter
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Patent number: 4236033Abstract: In a process for the manufacture of a p-alkylphenol by alkylating phenol with an olefin of 3 to 4 carbon atoms, at an elevated temperature, in the liquid phase, in two reaction zones in series and in the presence of a strongly acidic ion exchange resin as the catalyst, an improvement comprises:(a) passing in a first reaction stage at a temperature of 80.degree.-140.degree. C. over a suspended catalyst, the olefin as a gas at a gas velocity of 30 to 20 cm/second, based on the free cross-section of the empty reactor and on a molar volume of 25 liters per mole of olefin, from below into the reaction mixture; and(b) passing the resulting liquid reaction product, into a second reaction stage, at a temperature of 80.degree.-140.degree. C. over a fixed-bed catalyst;wherein a catalyst having an exchange capacity of 70-120 m. equivalents/100 cm.sup.3 is used in both reaction stages.Type: GrantFiled: October 4, 1978Date of Patent: November 25, 1980Assignee: Chemische Werke Huels AktiengesellschaftInventors: Helmut Alfs, George Boehm, Heinz Steiner
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Patent number: 4233437Abstract: In a process for removing monomeric impurities from an aqueous dispersion of homopolymers or copolymers of vinyl chloride having a surface tension below 60 dyn/cm. by treatment with steam while avoiding foam formation by a rapid lowering of the pressure at high flow velocities, the improvement which comprises:(a) continuously mixing said dispersion in a flow pipe with steam at a steam pressure of 800-4660 millibars for an average residence time of about 0.01-5 seconds;(b) continuously passing the resultant admixture from said flow pipe at a velocity of at least 30 meters per second directly to a degasification vessel having a pressure of 133-660 millibars; and(c) continuously recovering a polymer product containing less than 20 p.p.m. residual monomer impurities therefrom.Type: GrantFiled: February 28, 1978Date of Patent: November 11, 1980Assignee: Chemische Werke Huels AktiengesellschaftInventors: Josef Kalka, Bernhard Hentschel, Jurgen Ziebarth
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Patent number: 4233202Abstract: The low molecular water-soluble onium-catalyst dissolved in the liquid mixture of epoxy resin and excess epihalohydrin obtained by the reaction in the presence of base of a compound having --OH, --SH, --COOH or .dbd.NH groups with excess 1-halo-2,3-epoxyalkane, is separated therefrom by contacting the liquid mixture, either prior to or after separation therefrom of the precipitated salt produced by the reaction, with at least about 5 parts by weight based on the weight of the catalyst present in the liquid mixture, of an adsorbent containing or capable of absorbing at least 1% by weight of water so strongly that it cannot be removed either by drying over concentrated sulfuric acid or by drying at 110.degree. C. and can only be partially removed by drying at 200.degree. C. under vacuum (about 1 millibar), and then separating the adsorbent with catalyst adsorbed thereon from the liquid mixture.Type: GrantFiled: February 4, 1977Date of Patent: November 11, 1980Assignee: Chemische Werke Huels AktiengesellschaftInventors: Dieter Berger, Wilfried Bartz, Wolfgang Seeliger
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Patent number: 4173658Abstract: Powder coating compositions, for coating metallic surfaces at high temperatures, comprising saturated, high-molecular thermoplastic copolyesters obtained by the condensation of terephthalic acid and other dicarboxylic acids with 1,4-butanediol and, optionally, other diols, and conventional auxiliary agents and additives.Type: GrantFiled: June 28, 1978Date of Patent: November 6, 1979Assignee: Chemische Werke Huels AktiengesellschaftInventors: Hanns-Jorg Bax, Jorn Ruter, Roland Feinauer
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Patent number: 4171324Abstract: An improved process for the conversion of allyl and methallyl chloride to sodium allyl and methallyl sulfonate, respectively, by reaction with aqueous sodium sulfite which comprises conducting the reaction at 33.degree.-70.degree. C. and 33.degree.-80.degree. C., respectively, while maintaining the pH at 7-11 throughout the reaction.Type: GrantFiled: July 5, 1977Date of Patent: October 16, 1979Assignee: Chemische Werke Huels AktiengesellschaftInventors: Dieter J. Muller, Wilhelm Knepper
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Patent number: 4171295Abstract: Aqueous emulsions of olefin polymers and bitumen comprise:(a) 5-30% by weight of an extensively amorphous poly-.alpha.-olefin or poly-.alpha.-olefin mixture having viscosity numbers J of 5-400 cc./g. and ether-soluble proportions of more than 60%, wherein up to three quarters by weight of these polyolefins can be replaced by an elastomer;(b) 5-40% by weight of a hydrocarbon oil optionally containing a drying oil, wherein the hydrocarbon oil is a polybutene oil or the distillation residue form cyclododecatriene manufacture and/or a mixture of both;(c) 10-40% by weight of a bitumen;(d) 0-10% by weight of a chlorinated paraffin having a chlorine content of 45-60% and/or an aromatic bromine compound;(e) 0-20% by weight of a conventional additive;(f) 2-15% by weight of a surfactant; and(g) 15-78% by weight of water.Type: GrantFiled: October 19, 1977Date of Patent: October 16, 1979Assignee: Chemische Werke Huels AktiengesellschaftInventors: Albert Frese, Hermann Roeben, Horst Denzel
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Patent number: 4157330Abstract: Cyclic esters of dodecanedioic acid with aliphatic diols of 2-12 carbon atoms in the chain and substituted by up to two alkyl of 1-4 carbon atoms, are produced by thermolysis of corresponding linear polyesters under reduced pressure in the presence of catalysts by subjecting the linear polyesters to thermolysis at temperatures between 200.degree. and 300.degree. C., and by utilizing as catalyst a tin(II) salt of an aliphatic monocarboxylic acid of up to 18 carbon atoms, of an aromatic or araliphatic monocarboxylic acid of up to 36 carbon atoms, of an aliphatic or aromatic hydroxy-, poly-, ketocarboxylic acid or of a dicarboxylic acid of up to 18 carbon atoms; or a mixture of an organotin compound of the formula ##STR1## wherein R.sub.1 and R.sub.2 are alkyl of 1-18 carbon atoms, or aryl or aralkyl of 6-36 carbon atoms, and an O,O-dialkyl-(3,5-di-tert.-butyl-4-hydroxybenzyl)-phosphonate wherein each alkyl is of 2-18 carbon atoms.Type: GrantFiled: January 6, 1978Date of Patent: June 5, 1979Assignee: Chemische Werke Huels AktiengesellschaftInventors: Joern Rueter, Klaus Burzin, Karl-Heinz Magosch, Roland Feinauer
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Patent number: 4153772Abstract: Vulcanizable polyalkenamer molding compositions comprising: (a) a polyoctenamer having an extensively cyclic structure with a trans-content of 50-70% and a reduced specific viscosity of 0.8-1.7 (dl./g.); and (b) conventional elastomer vulcanizing agents and additives have improved flow properties suitable for thermoplastic molding techniques together with mechanical properties in the vulcanizate comparable to SBR rubber.Type: GrantFiled: May 20, 1977Date of Patent: May 8, 1979Assignee: Chemische Werke Huels AktiengesellschaftInventors: Helmut Schwesig, Karl-Heinz Nordsiek, Friedrich-Wilhelm Kupper